import pickle


def save_mean_std_to_pkl(mean_list, std_list, pkl_file="mean_std.pkl"):
    with open(pkl_file, "wb") as f:
        pickle.dump({"mean": mean_list, "std": std_list}, f)
    print(f"均值和标准差已保存到 pkl 文件: {pkl_file}")

    return mean_list, std_list
